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Finding the Fourth Proportional to 235,065.90, 352,591.94 and 66,585.90

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Solution

The fourth proportional to 235,065.90, 352,591.94 and 66,585.90 is: 99,876.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,065.90 : 352,591.94 = 66,585.90 : x
  2. Step 2: Convert to fraction form
    235,065.90/352,591.94 = 66,585.90/x
  3. Step 3: Cross multiply
    235,065.90x = 352,591.94 × 66,585.90
  4. Step 4: Simplify right side
    235,065.90x = 23,477,651,657.65
  5. Step 5: Solve for x
    x = 23,477,651,657.65/235,065.90
  6. Step 6: Final answer
    x = 99,876.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.